[Users] Live migration of VM's occasionally fails
Dafna Ron
dron at redhat.com
Wed Feb 19 18:32:21 UTC 2014
Thanks Steve!
I am still perplexed how come one out of two identical vm's would fail
migration... logic states that they should both fail.
On 02/19/2014 06:29 PM, Steve Dainard wrote:
> I added another vlan on both hosts, and designated it a migration
> network. Still the same issue, failed to migrate one of the two VM's.
>
> I then deleted a failed posix domain on another gluster volume with
> some heal tasks pending, with no hosts attached to it, and the VM's
> migrated successfully. Perhaps gluster isn't passing storage errors up
> properly for non-dependent volumes. Anyways this is solved for now,
> just wanted this here for posterity.
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision <http://miovision.com/> | /Rethink Traffic/
>
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> On Tue, Feb 18, 2014 at 5:00 PM, Steve Dainard <sdainard at miovision.com
> <mailto:sdainard at miovision.com>> wrote:
>
> sanlock.log on the second host (ovirt002) doesn't have any entries
> anywhere near that time of failure.
>
> I see some heal-failed errors in gluster, but seeing as the
> storage is exposed via NFS I'm surprised to think this might be
> the issue. I'm working on fixing those files now, I'll update if I
> make any progress.
>
>
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision <http://miovision.com/> | /Rethink Traffic/
>
> *Blog <http://miovision.com/blog> | **LinkedIn
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> ------------------------------------------------------------------------
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>
> On Mon, Feb 17, 2014 at 5:32 PM, Dafna Ron <dron at redhat.com
> <mailto:dron at redhat.com>> wrote:
>
> really interesting case :) maybe gluster related?
> Elad, can you please try to reproduce this?
> gluster storage -> at least two vm's server type created from
> template as thin provision (it's clone copy).
> after create run and migrate all vm's from one host to the
> second host.
> I think it would be a locking issue.
>
> Steve, can you please also check the sanlock log in the second
> host + look if there are any errors in the gluster logs (on
> both hosts)?
>
> Thanks,
>
> Dafna
>
>
>
> On 02/17/2014 06:52 PM, Steve Dainard wrote:
>
> VM's are identical, same template, same cpu/mem/nic.
> Server type, thin provisioned on NFS (backend is glusterfs
> 3.4).
>
> Does monitor = spice console? I don't believe either of
> them had a spice connection.
>
> I don't see anything in the ovirt001 sanlock.log:
>
> 2014-02-14 11:16:05-0500 255246 [5111]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:16:05-0500 255246 [5111]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:16:15-0500 255256 [5110]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:16:15-0500 255256 [5110]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:16:25-0500 255266 [5111]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:16:25-0500 255266 [5111]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:16:36-0500 255276 [5110]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:16:36-0500 255276 [5110]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:16:46-0500 255286 [5111]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:16:46-0500 255286 [5111]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:16:56-0500 255296 [5110]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:16:56-0500 255296 [5110]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:17:06-0500 255306 [5111]: cmd_inq_lockspace
> 4,14
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:17:06-0500 255306 [5111]: cmd_inq_lockspace
> 4,14 done 0
> 2014-02-14 11:17:06-0500 255307 [5105]: cmd_register ci 4
> fd 14 pid 31132
> 2014-02-14 11:17:06-0500 255307 [5105]: cmd_restrict ci 4
> fd 14 pid 31132 flags 1
> 2014-02-14 11:17:16-0500 255316 [5110]: cmd_inq_lockspace
> 5,15
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:17:16-0500 255316 [5110]: cmd_inq_lockspace
> 5,15 done 0
> 2014-02-14 11:17:26-0500 255326 [5111]: cmd_inq_lockspace
> 5,15
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:17:26-0500 255326 [5111]: cmd_inq_lockspace
> 5,15 done 0
> 2014-02-14 11:17:26-0500 255326 [5110]: cmd_acquire
> 4,14,31132 ci_in 5 fd 15 count 0
> 2014-02-14 11:17:26-0500 255326 [5110]: cmd_acquire
> 4,14,31132 result 0 pid_dead 0
> 2014-02-14 11:17:26-0500 255326 [5111]: cmd_acquire
> 4,14,31132 ci_in 6 fd 16 count 0
> 2014-02-14 11:17:26-0500 255326 [5111]: cmd_acquire
> 4,14,31132 result 0 pid_dead 0
> 2014-02-14 11:17:36-0500 255336 [5110]: cmd_inq_lockspace
> 5,15
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:17:36-0500 255336 [5110]: cmd_inq_lockspace
> 5,15 done 0
> 2014-02-14 11:17:39-0500 255340 [5105]: cmd_register ci 5
> fd 15 pid 31319
> 2014-02-14 11:17:39-0500 255340 [5105]: cmd_restrict ci 5
> fd 15 pid 31319 flags 1
> 2014-02-14 11:17:39-0500 255340 [5105]: client_pid_dead
> 5,15,31319 cmd_active 0 suspend 0
> 2014-02-14 11:17:46-0500 255346 [5111]: cmd_inq_lockspace
> 5,15
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:17:46-0500 255346 [5111]: cmd_inq_lockspace
> 5,15 done 0
> 2014-02-14 11:17:56-0500 255356 [5110]: cmd_inq_lockspace
> 5,15
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
> 2014-02-14 11:17:56-0500 255356 [5110]: cmd_inq_lockspace
> 5,15 done 0
> 2014-02-14 11:18:06-0500 255366 [5111]: cmd_inq_lockspace
> 5,15
> a52938f7-2cf4-4771-acb2-0c78d14999e5:1:/rhev/data-center/mnt/gluster-store-vip:_rep1/a52938f7-2cf4-4771-acb2-0c78d14999e5/dom_md/ids:0
> flags 0
>
> ovirt002 sanlock.log has on entries during that time frame.
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision <http://miovision.com/> | /Rethink Traffic/
>
> *Blog <http://miovision.com/blog> | **LinkedIn
> <https://www.linkedin.com/company/miovision-technologies>
> | Twitter <https://twitter.com/miovision> | Facebook
> <https://www.facebook.com/miovision>*
> ------------------------------------------------------------------------
> Miovision Technologies Inc. | 148 Manitou Drive, Suite
> 101, Kitchener, ON, Canada | N2C 1L3
> This e-mail may contain information that is privileged or
> confidential. If you are not the intended recipient,
> please delete the e-mail and any attachments and notify us
> immediately.
>
>
> On Mon, Feb 17, 2014 at 12:59 PM, Dafna Ron
> <dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>> wrote:
>
> mmm... that is very interesting...
> both vm's are identical? are they server or desktops
> type? created
> as thin copy or clone? what storage type are you
> using? did you
> happen to have an open monitor on the vm that failed
> migration?
> I wonder if it can be sanlock lock on the source
> template but I
> can only see this bug happening if the vm's are linked
> to the template
> can you look at the sanlock log and see if there are
> any warning
> or errors?
>
> All logs are in debug so I don't think we can get
> anything more
> from it but I am adding Meital and Omer to this mail
> to help debug
> this - perhaps they can think of something that can
> cause that
> from the trace.
>
> This case is really interesting... sorry, probably not
> what you
> want to hear... thanks for helping with this :)
>
> Dafna
>
>
>
> On 02/17/2014 05:08 PM, Steve Dainard wrote:
>
> Failed live migration is wider spread than these
> two VM's, but
> they are a good example because they were both
> built from the
> same template and have no modifications after they
> were
> created. They were also migrated one after the
> other, with one
> successfully migrating and the other not.
>
> Are there any increased logging levels that might help
> determine what the issue is?
>
> Thanks,
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision <http://miovision.com/> | /Rethink Traffic/
>
> *Blog <http://miovision.com/blog> | **LinkedIn
>
> <https://www.linkedin.com/company/miovision-technologies> |
> Twitter <https://twitter.com/miovision> | Facebook
> <https://www.facebook.com/miovision>*
>
> ------------------------------------------------------------------------
> Miovision Technologies Inc. | 148 Manitou Drive,
> Suite 101,
> Kitchener, ON, Canada | N2C 1L3
> This e-mail may contain information that is
> privileged or
> confidential. If you are not the intended
> recipient, please
> delete the e-mail and any attachments and notify
> us immediately.
>
>
> On Mon, Feb 17, 2014 at 11:47 AM, Dafna Ron
> <dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>>>> wrote:
>
> did you install these vm's from a cd? run it
> as run-once
> with a
> special monitor?
> try to think if there is anything different in the
> configuration
> of these vm's from the other vm's that succeed
> to migrate?
>
>
> On 02/17/2014 04:36 PM, Steve Dainard wrote:
>
> Hi Dafna,
>
> No snapshots of either of those VM's have
> been taken, and
> there are no updates for any of those
> packages on EL 6.5.
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision <http://miovision.com/> |
> /Rethink Traffic/
>
> *Blog <http://miovision.com/blog> | **LinkedIn
>
> <https://www.linkedin.com/company/miovision-technologies> |
> Twitter <https://twitter.com/miovision> |
> Facebook
> <https://www.facebook.com/miovision>*
> ------------------------------------------------------------------------
> Miovision Technologies Inc. | 148 Manitou
> Drive, Suite
> 101,
> Kitchener, ON, Canada | N2C 1L3
> This e-mail may contain information that
> is privileged or
> confidential. If you are not the intended
> recipient,
> please
> delete the e-mail and any attachments and
> notify us
> immediately.
>
>
> On Sun, Feb 16, 2014 at 7:05 AM, Dafna Ron
> <dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>>>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>>>>> wrote:
>
> does the vm that fails migration have
> a live snapshot?
> if so how many snapshots does the vm have.
> I think that there are newer packages
> of vdsm,
> libvirt and
> qemu -
> can you try to update
>
>
>
> On 02/16/2014 12:33 AM, Steve Dainard
> wrote:
>
> Versions are the same:
>
> [root at ovirt001 ~]# rpm -qa | egrep
> 'libvirt|vdsm|qemu'
> | sort
> gpxe-roms-qemu-0.9.7-6.10.el6.noarch
> libvirt-0.10.2-29.el6_5.3.x86_64
> libvirt-client-0.10.2-29.el6_5.3.x86_64
> libvirt-lock-sanlock-0.10.2-29.el6_5.3.x86_64
> libvirt-python-0.10.2-29.el6_5.3.x86_64
> qemu-img-rhev-0.12.1.2-2.355.el6.5.x86_64
> qemu-kvm-rhev-0.12.1.2-2.355.el6.5.x86_64
> qemu-kvm-rhev-tools-0.12.1.2-2.355.el6.5.x86_64
> vdsm-4.13.3-3.el6.x86_64
> vdsm-cli-4.13.3-3.el6.noarch
> vdsm-gluster-4.13.3-3.el6.noarch
> vdsm-python-4.13.3-3.el6.x86_64
> vdsm-xmlrpc-4.13.3-3.el6.noarch
>
> [root at ovirt002 ~]# rpm -qa | egrep
> 'libvirt|vdsm|qemu'
> | sort
> gpxe-roms-qemu-0.9.7-6.10.el6.noarch
> libvirt-0.10.2-29.el6_5.3.x86_64
> libvirt-client-0.10.2-29.el6_5.3.x86_64
> libvirt-lock-sanlock-0.10.2-29.el6_5.3.x86_64
> libvirt-python-0.10.2-29.el6_5.3.x86_64
> qemu-img-rhev-0.12.1.2-2.355.el6.5.x86_64
> qemu-kvm-rhev-0.12.1.2-2.355.el6.5.x86_64
> qemu-kvm-rhev-tools-0.12.1.2-2.355.el6.5.x86_64
> vdsm-4.13.3-3.el6.x86_64
> vdsm-cli-4.13.3-3.el6.noarch
> vdsm-gluster-4.13.3-3.el6.noarch
> vdsm-python-4.13.3-3.el6.x86_64
> vdsm-xmlrpc-4.13.3-3.el6.noarch
>
> Logs attached, thanks.
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision <http://miovision.com/>
> | /Rethink
> Traffic/
>
> *Blog <http://miovision.com/blog>
> | **LinkedIn
>
> <https://www.linkedin.com/company/miovision-technologies> |
> Twitter
> <https://twitter.com/miovision> |
> Facebook
> <https://www.facebook.com/miovision>*
> ------------------------------------------------------------------------
> Miovision Technologies Inc. | 148
> Manitou
> Drive, Suite
> 101,
> Kitchener, ON, Canada | N2C 1L3
> This e-mail may contain
> information that is
> privileged or
> confidential. If you are not the
> intended
> recipient,
> please
> delete the e-mail and any
> attachments and
> notify us
> immediately.
>
>
> On Sat, Feb 15, 2014 at 6:24 AM,
> Dafna Ron
> <dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>>>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>>
>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>>
> <mailto:dron at redhat.com <mailto:dron at redhat.com>
> <mailto:dron at redhat.com
> <mailto:dron at redhat.com>>>>>> wrote:
>
> the migration fails in libvirt:
>
>
> Thread-153709::ERROR::2014-02-14
> 11:17:40,420::vm::337::vm.Vm::(run)
>
> vmId=`08434c90-ffa3-4b63-aa8e-5613f7b0e0cd`::Failed to
> migrate
> Traceback (most recent call last):
> File
> "/usr/share/vdsm/vm.py", line 323,
> in run
>
> self._startUnderlyingMigration()
> File
> "/usr/share/vdsm/vm.py", line 403, in
> _startUnderlyingMigration
> None, maxBandwidth)
> File
> "/usr/share/vdsm/vm.py", line 841, in f
> ret = attr(*args, **kwargs)
> File
>
> "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py",
> line 76, in wrapper
> ret = f(*args, **kwargs)
> File
>
> "/usr/lib64/python2.6/site-packages/libvirt.py",
> line 1178,
> in migrateToURI2
> if ret == -1: raise
> libvirtError
> ('virDomainMigrateToURI2()
> failed', dom=self)
> libvirtError: Unable to read
> from monitor:
> Connection
> reset by peer
> Thread-54041::DEBUG::2014-02-14
> 11:17:41,752::task::579::TaskManager.Task::(_updateState)
>
> Task=`094c412a-43dc-4c29-a601-d759486469a8`::moving from
> state
> init -> state preparing
> Thread-54041::INFO::2014-02-14
> 11:17:41,753::logUtils::44::dispatcher::(wrapper)
> Run and
> protect:
> getVolumeSize(sdUUID='a52938f7-2cf4-4771-acb2-0c78d14999e5',
> spUUID='fcb89071-6cdb-4972-94d1-c9324cebf814',
> imgUUID='97c9108f-a506-415f-ad2
> c-370d707cb130',
> volUUID='61f82f7f-18e4-4ea8-9db3-71ddd9d4e836',
> options=None)
>
> Do you have the same
> libvirt/vdsm/qemu on both
> your hosts?
> Please attach the libvirt and
> vm logs from
> both hosts.
>
> Thanks,
> Dafna
>
>
>
> On 02/14/2014 04:50 PM, Steve
> Dainard wrote:
>
> Quick overview:
> Ovirt 3.3.2 running on
> CentOS 6.5
> Two hosts: ovirt001, ovirt002
> Migrating two VM's:
> puppet-agent1,
> puppet-agent2 from
> ovirt002
> to ovirt001.
>
> The first VM puppet-agent1
> migrates
> successfully. The
> second
> VM puppet-agent2 fails
> with "Migration
> failed
> due to
> Error:
> Fatal error during
> migration (VM:
> puppet-agent2, Source:
> ovirt002, Destination:
> ovirt001)."
>
> I've attached the logs if
> anyone can
> help me track
> down the issue.
>
> Thanks,
>
> *Steve Dainard *
> IT Infrastructure Manager
> Miovision
> <http://miovision.com/> |
> /Rethink
> Traffic/
>
> *Blog
> <http://miovision.com/blog> |
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>
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> Facebook
>
> <https://www.facebook.com/miovision>*
>
> ------------------------------------------------------------------------
>
>
> Miovision Technologies
> Inc. | 148 Manitou
> Drive, Suite
> 101,
> Kitchener, ON, Canada |
> N2C 1L3
> This e-mail may contain
> information
> that is
> privileged or
> confidential. If you are not the intended
> recipient,
> please
> delete the e-mail and any
> attachments and
> notify us
> immediately.
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>
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> -- Dafna Ron
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